Now with more knowledge and experience I refactored my package description(wip/raw). But something is strange, the given Distname is truncated by Pkgsrc so the request to Gitub returns a 404. Instead of Another-World-Bytecode-Interpreter only Another-World-Bytecode is used? Any ideas?

EDIT: The workaround is to add a dummy dash random name and voila, the download start.